At RapidDirect, we follow the ISO 9001 standards which are the hallmarks of the highest quality in the manufacturing sector. Our stringent quality methods allow us to maintain the strictest general tolerances for all manufacturing processes from CNC Machining to sheet metal fabrication, and beyond.
Here are the general tolerances for specific processes that we offer at RapidDirect.
ISO 2768 for CNC machining with tolerances down to 0.025mm
| Standards | CNC Milling | CNC Turning |
| Maximum Part Size | 4000×1500×600 mm157.5×59.1×23.6 in. | 200×500 mm7.9×19.7 in. |
| Minimum Part Size | 4×4 mm0.1×0.1 in. | 2×2 mm0.079×0.079 in. |
| Minimum Feature Size | Φ 0.50 mmΦ 0.00197 in. | Φ 0.50 mmΦ 0.00197 in. |
| Standard Tolerances | Metals: ISO 2768-f Plastics: ISO 2768-m | Metals: ISO 2768-f Plastics: ISO 2768-m |
| Linear Dimension | +/- 0.025 mm +/- 0.001 in. | +/- 0.025 mm +/- 0.001 in. |
| Hole Diameters (Not Reamed) | +/- 0.025 mm +/- 0.001 in. | +/- 0.025 mm +/- 0.001 in. |
| Shaft Diameters | +/- 0.025 mm +/- 0.001 in. | +/- 0.025 mm +/- 0.001 in. |
| Edge Condition | Sharp corner will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing. | Sharp corner will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing. |
| Threads and Tapped Holes | Diameter: Φ 1.5-5 mm, depth: 3×diameterDiameter: Φ 5 mm or more, depth: 4-6×diameter | Diameter: Φ 1.5-5 mm, depth: 3×diameterDiameter: Φ 5 mm or more, depth: 4-6×diameter |
| RapidDirect can produce threads of any specification and size required by our customers. | RapidDirect can produce threads of any specification and size required by our customers. | |
| Text | Minimum width of 0.5 mm, depth of 0.1 mmRapidDirect can use CNC engraving or laser carving to create standard text based on customers’ requirements. | RapidDirect can use laser marking to create standard text for CNC turned parts. |
| Lead Time | 5 business days | 5 business days |
ISO 9001 for Injection Molding with tolerances down to 0.05mm
| Standards | Description |
| Maximum Part Size | 1200×1000×500 mm47.2×39.4×19.7 in. |
| Minimum Part Size | 1×1×1 mm0.039×0.039×0.039 in. |
| Part to Part Repeatability | +/- 0.1 mm+/- 0.0039 in. |
| Mold Cavity Tolerances | +/- 0.05 mm+/- 0.002 in. |
| Available Mold Types | Steel and aluminum tooling. Production grade we provide: Under 1000 cycles, under 5000 cycles, under 30,000 cycles, and over 100,000 cycles |
| Machines Available | Single cavity, multi-cavity, and family molds,50 to 500 press tonnage |
| Secondary Operations | Mold texturing, pad printing, laser engraving, threaded inserts and basic assembly. |
| Inspection and Certification Options | First Article Inspection, ISO 9001, ISO 13485 |
| Lead Time | 15 business days or less for most orders,24/7 quotation response |
ISO 9001 for Sheet Metal Fabrication with dimension tolerances.
| Dimension Detail | Metric Units | Imperial Units |
| Edge to edge, single surface | +/- 0.127 mm | +/- 0.005 in. |
| Edge to hole, single surface | +/- 0.127 mm | +/- 0.005 in. |
| Hole to hole, single surface | +/- 0.127 mm | +/- 0.005 in. |
| Bend to edge / hole, single surface | +/- 0.254 mm | +/- 0.010 in. |
| Edge to feature, multiple surface | +/- 0.762 mm | +/- 0.030 in. |
| Over formed part, multiple surface | +/- 0.762 mm | +/- 0.030 in. |
| Bend angle | +/- 1° | +/- 1° |
Tolerances down to 0.005mm for 3D printing applications.
| Process | Min. Wall Thickness | Layer Height | Max. Build Size | Dimension Tolerance |
| SLA | 1.0 mm0.040 in. | 50 – 100 μm | 250 × 250 × 250 mm9.843 × 9.843 × 9.843 in. | +/- 0.15% with a lower limit of +/- 0.01 mm |
| SLS | 1.0 mm0.040 in. | 100 μm | 420 × 500 × 420 mm16.535 × 19.685 × 16.535 in. | +/- 0.3% with a lower limit of +/- 0.3 mm |
| FDM | 1.0 mm0.040 in. | 100 – 300 μm | 500 * 500 * 500 mm19.685 × 19.685 × 19.685 in. | +/- 0.15% with a lower limit of +/- 0.2 mm |